<template>
    <Header></Header>
    <div class="fixed">
        <div class="bgColor">
            <h1 class="main-shopcart">购物车</h1>
        </div>
        <div class="container">
            <div class="main">
                <div class="nav">
                    <span class="left">全部课程</span>
                </div>
                <ul class="head">
                    <li class="item check">
                        <el-checkbox v-model='isCheckedAll' @change="changeCheckedAll">全选</el-checkbox>
                    </li>
                    <li class="item classInfo">课程信息</li>
                    <li class="item price">单价</li>
                    <li class="item count">数量</li>
                    <li class="item total">金额</li>
                    <li class="item function">操作</li>
                </ul>
                <div v-if="true">
                    <ul class="haveorder" v-for="(item,index) in shopCartList">
                        <li class="order-item">
                            <el-checkbox v-model="item.select" @change="cartStore.courseChecked(index)"></el-checkbox>
                        </li>
                        <li class="order-item info" >
                            <div class="courseimg" >
                                <img :src="item.courseCover" alt="课程图片">
                            </div>
                            <div class="course-name">{{item.courseName}}</div>
                        </li>

                        <li class="order-item">￥{{item.discountPrice}}</li>
                        <li class="order-item num">{{item.counter}}</li>
                        <li class="order-item totoalprice">￥{{item.discountPrice*item.counter}}</li>
                        <li class="order-item delete" >
                            <a href="javascript:;" @click="delShopCartCourse(item)">
                                <i class="el-icon-delete"></i>
                                <span class="deletd-text">删除</span>
                            </a>
                        </li>
                    </ul>
                </div>
                <div class="noOrder" v-else>
                    <img src="/image/norder365.png" alt="">
                    <div class="order-alert">哎呦！暂无订单</div>
                </div>
                <el-divider class="line"></el-divider>
                <ul class="foot">
                    <li class="foot-item">已选课程<span class="unique">{{total.number}}</span></li>
                    <li class="foot-item">合计<span class="unique">{{total.price}}</span></li>
                    <li >
                        <button class="btn" @click="goConfirmOrder">去结算</button>
                    </li>
                </ul>
            </div>
        </div>
    </div>
    <Foot></Foot>
</template>

<script setup>
//引入vue3组合式api
import {ref,onMounted} from 'vue';
//组件
import Header from '@/components/common/Header.vue'
import Foot from '@/components/common/Footer.vue'
//引入路由
import {useRoute,useRouter} from 'vue-router';
const route = useRoute();
const router = useRouter();
//element ui
import { ElCheckbox,ElDivider,ElMessage, ElMessageBox } from 'element-plus'
//引入请求api
import {reqShopCarList,reqDeleteShopCartCourse} from "@/api/cart.js";
import {createTempToken} from "@/api/userInfo.js";
//引入pinia
import {useCartStore} from "@/store/cart.js";
const cartStore = useCartStore();  //实例化容器
// 导入 pinia 中的 storeToRefs 方法
import { storeToRefs } from 'pinia';
let {shopCartList,select,isCheckedAll,total} = storeToRefs(cartStore);

//全选全不选的change事件
const changeCheckedAll = () => {
    if(isCheckedAll.value){
        //全不选
        cartStore.unCheckedAll();
    }else{
        //全选
        cartStore.checkedAll();
    }
}

//购物车删除某个课程
const delShopCartCourse = (item) => {
    ElMessageBox.confirm(
    `确定从购物车移除课程${item.courseName}吗?`,
    "温馨提示",
    {
      confirmButtonText: '移除',
      cancelButtonText: '取消',
      type: 'warning',
    }
  )
    .then(() => {   
        createTempToken().then(res=>{
            reqDeleteShopCartCourse({id:item.id},res.data.token).then(res=>{
                ElMessage({
                    type: 'success',
                    message: '移除成功',
                });
                location.reload();  //刷新页面
                console.log("从购物车删除课程api成功",res);
            })
        })
    })
    .catch(() => {
      ElMessage({
        type: 'info',
        message: '已取消',
      })
    })
}

//去结算按钮
const goConfirmOrder = () => {
    router.push("/confirmorder");
}

//生命周期
onMounted(()=>{
    //购物车数据
    reqShopCarList().then(res=>{
        cartStore.getCartList(res.data.list); //购物车数据存储在pinia中
        console.log("购物车数据获取成功",res);
    })
})
</script>
<style scoped>
.fixed{
  width: 100%;
  height: 100%;
  background: #FFFFFF;
}
.bgColor{
  width: 100%;
  height: 200px;
  background-color: red;
  background: linear-gradient(-45deg, #ee7752, #e73c7e, #23a6d5, #23d5ab);
  background-size: 400% 400%;
  animation: gradient 15s ease infinite;
}
@keyframes gradient {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}
.container{
  width: 1200px;
  margin: -100px auto 50px auto;
  background: #EBEDF2;
  border-radius: 12px;
  box-shadow: 0px 2px 5px #888888;
}
.main{
  padding:20px;
  border-radius: 5px;
}
.main-shop{
  position: relative;
  display: flex;
  align-content: center;
}
.main-shop i{
  font-size: 35px;
  padding: 20px 10px 0 0;
  color: #FF4400;
  font-weight: bold;
}
.main-shopcart{
  width: 1200px;
  margin: 0 auto;
  height: 42px;
  font-size: 24px;
  font-family: Microsoft YaHei;
  font-weight: bold;
  line-height: 35px;
  color: #FFFFFF;
  padding: 30px 0;
  opacity: 1;
}
.nav{
  display: flex;
  justify-content: space-between;
  border-bottom: 2px solid #E6E6E6;

}
.nav .left{
  width: 80px;
  height: 26px;
  font-size: 18px;
  font-family: Microsoft YaHei;
  font-weight: bold;
  line-height: 0px;
  color: #FF4400;
  opacity: 1;
  border-bottom: 2px solid #FF4400;
}
.nav .right{
  width: 108px;
  height: 24px;
  font-size: 14px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  line-height: 0px;
  color: #333333;
  opacity: 0.5;
}

/* 头部开始 */
.head{
  display: flex;
  padding: 0 10px;
  margin: 20px 0;
  width: 100%;
  height: 35px;
  line-height: 35px;
  background: #FCFCFC;
  opacity: 1;
  border-radius: 0px;
  box-sizing: border-box;
  border-radius: 5px;
  box-shadow: 0px 2px 5px 2px #cccccc;
}
.head .item{
  width: 150px;
  font-size: 14px;
  color: #333333;
}
.check .all{
  margin-right: 10px;
}
.check .text{
  width: 1487px;
  height: 40px;

}
.classInfo{
  width: 400px!important;
  color: #333333;
}
/* 头部结束 */

/* 订单开始 */
.haveorder{
  display: flex;
  width: 100%;
  height: 200px;
  background: #FCFCFC;
  margin-bottom: 10px;
  border-radius: 5px;
  box-shadow: 0px 2px 5px 2px #cccccc;
}
.haveorder .order-item{
  height: 200px;
  line-height: 200px;
  margin:  5px;
}
.order-item:first-child{
  width: 30px;
}
.order-item{
  width: 150px;
  font-size: 16px;
  color: #333333;
}
.totoalprice{
  color: #E2231A;
}
.num{
  width: 120px !important;
  padding-left: 15px;
}
.info{
  display: flex;
  width: 470px !important;
  height: 200px;
  line-height: 200px;
}
.courseimg{
  margin:40px 20px 40px 0;
  width: 200px;
  height: 120px;
}
.courseimg img{
  width: 100%;
  height: 100%;
}
.info .course-name{
  width: 300px;
  word-break: keep-all;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.delete{
  cursor: pointer;
}
.deletd-text{
  margin-left: 5px;
}

/* 订单结束 */

/* 暂无订单开始 */
.noOrder{
  width: 100%;
  height: 100%;
  text-align: center;
  margin:200px 0;
}
.order-alert{
  height: 31px;
  font-size: 20px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  line-height: 0px;
  color: #B5B9BC;
  opacity: 1;
  margin:20px 120px;

}
/* 暂无订单结束 */
.foot{
  display: flex;
  justify-content: flex-end;
  width: 100%;
  height: 40px;
  line-height: 40px;
  color: #333333;
  margin-bottom: 10px;
}
.foot-item{
  width: 120px;
  height: 40px;
  line-height: 40px;
  font-size: 14px;
  font-weight: 400;
  color: #333333;
}
.unique{
  margin-left: 5px;
  font-size: 24px;
  color: #FF4400;
}
.btn{
  width: 120px;
  height: 40px;
  margin-left: 20px;
  border: none;
  color: #FFFFFF;
  font-size: 22px;
  border-radius: 5px;
  background: #FF4400;
  cursor: pointer;
  box-shadow: 0px 3px 5px 2px #ff727f;
}
</style>